Power Metallurgy(PM) is a processing method that used metal power as raw material, which is pressed and sintered to produce various products. Power metallurgy technology consists of three main steps: Firstly: Main constituent materials are granulated into fine powerr particles. Secondly: the powder is filled into the forming mold and a certain pressure is applied to first form a green body with required part shape and size. Finally: the green boday is high-temperature sintered             Application of Power Metallurgy Material Power metallurgy material made from several metal powders or metal and non-metal powders through processes such as batching, pressing and sintering. Power metallurgy material is often used to produce hard alloys, antifriction materials, structural materials, friction materials, refractory metal materials, filter materials, cermets, non segregation high-speed tool steels, magnetic materials, heat-resistant materials 1.Antifriction Materials: materials  made by immersing lubricating oil in the pores of the materials or adding friction reducing agents or solid lubricants to the material composition. because of the condition of limited lubricating oil, the friction coefficient between material surface is small,  the service life is long and the reliability is high.Under dry friction conditions, relying on the lubricant contained on itself or on the surface layer, it has a self-lubricating effect.Widely used in the manufacturing of bearings, support bushings.   2.Porous Materials: Formed and sintered from spherical or iiregularly shaped metal or alloy powder. The internal pores of the materials are crisscrossed and interconnected with a volume porosity of 30% to 60% and a pore size of 1-100microns. Good permeability ,thermal conductivity and conductivity, resistant to high and low temperatures,thermal shock and medium corrosion. Used for manufacturing filters, porous electrodes, fire extinguishing devices, antifreeze devices.   3.Structural Materials: material can withstand loads such as tension, compression and torsion, can work under friction and wear conditions. But, due to the presence of residual pores inside the material, the  ductility and impact value are lower than those of castings and forgings with the same chemical composition, thus limiting the application range.   4.Metallurgical friction materials: it consists of three parts: matrix metal ( copper, iron or other alloys), lubricating component( lead, graphite, molybdenum disulfide), and friction component (silicon dioxide, asbestos). It has a high coefficient of friction ,can quickly absorb kinetic energy, fast braking and transmission speed and low wear;High strength, high temperture resistance and good thermal conductivity; Good anti-bite performance, corrosion resistance and less affected by grease and moisture. Mainly used for manufacturing clutches and brakes.   5. Power metallurgy tooling materials: including hard alloys, powder metallurgy high-speed steel. The latter has uniform structure, fine grains, no segregation, better toughness and wear resistance than cast high-speed steel, less heat treatment deformation and longer service life. Billets that can be used to manufacture cutting tools, molds and insert parts.   6. Powder metallurgy electromagnetic materials: including electical and magnetic materials. In electrical materials, powder metallurgy materials of precious metals such as gold, silver, platinum and powder metallurgy materials made by adding tungsten, nickel,iron, tungsten carbide,graphite to the silver and copper matrix are used as power head materials. Magnetic materials are divided into soft and hard magnetic materials. Soft magnetic materials include magnetic powder,magnetic powder core, soft ferrite and powder silicon steel. Hard magnetic materials include hard magnetic ferrite ,rare earth cobalt hard magnetic.   7. Powder metallurgy high-temperature materials: including powder metallurgy high-temperature alloys, refractory metals an alloys, cermets, dispersion strengthened an fiber reinforced materials, Used for manufacturing turbine discs, nozzles, blades and other high-temperature resistant components for use at high temperatures   Advantage of Powder metallurgy 1.Capable of producing small metal ceramics and other components with complex shapes in one time.(weight:0.1-500g, High Quality,High material and Longer process time) 2.The structure of each part of the workpiece is uniform, with high dimensional accuracy and relative density (high mechanical properties sush as product strength, hardness, elongation, good wear resistance ,fatigue resistance, uniform struture, density ranging from 95% to 99.5% mixed density, near cast or forged parts) 3.Low product cost, good surface finish, good sintering accuracy, generally 0.003-0.005 inch/inch,precision<0.05%,generally without the need for subsequent processing. Goo...

Metal Injection Molding (MIM) is an efficient and precise metal processing technology that combines the advantages of plastic injection molding and traditional powder metallurgy processes. it allows the production of complex shaped metal parts and achieves high density and detailed while achieving near net forming. Main steps of metal injection molding: Mixed material ,Pulverizc material, Pallctizing, Molding, Debinding, Sintering,Treatment.         Advantage of Metal Injection Molding 1.Capable of producing small metal ceramics and other components with complex shapes in one time.(weight:0.1-500g, High Quality,High material and Longer process time) 2.The structure of each part of the workpiece is uniform, with high dimensional accuracy and relative density (high mechanical properties sush as product strength, hardness, elongation, good wear resistance ,fatigue resistance, uniform struture, density ranging from 95% to 99.5% mixed density, near cast or forged parts) 3.Low product cost, good surface finish, good sintering accuracy, generally 0.003-0.005 inch/inch,precision<0.05%,generally without the need for subsequent processing. Good surface roughness<Ra5, Manufacturig Good Surface Polishing. 4.Stable product Quality, High production efficiency, high utilization of raw materials, high degree of production automation, simple process and easy to achieve large- scale production 5.It can be widely used for precise and complex geometric objects, as well as various alloys ,mixtures and characteristic materials. Thickness >0.5mm 6.Property: Wide range of materials can be used to make products with high strength, high toughness, high hardness, high tempetature resistance ,electrical properties ,magnetism ,high heat dissipation and low thermal expansion. Material System Low-alloy steel Stainless steel Carbide Ceramics  Heavy Alloy  Ti Alloy Magnetic Material Tooling  Steel Alloy Grade Fe-2Ni,Fe-8Ni 316L,17-4PH,420,440C WC-Co AL203,ZrO2,SiO2 W-Ni-Fe,W-Ni-Cu Ti, Ti-6Al-4V Fe, NdFeB, SmCO5, Fe-Si CrMo4, M2 Application Industry of Metal Injection Molding 1.Computers and their auxiliary facilities: Such as printer parts, Magnetic Cores, Striker Pins and Drive Parts 2.Tools: Drill bits, Cutting Heads, Nozzles, Gun Drills, Spiral Milling Cutters, Punches, Sockets, Wrenches, Electrical Tools, Hand tools 3.Household Appliances: Watch Cases, Watch Chains, Electric Toothbrushes, Scissors, Fans, Golf ball heads, Jewelry Chains, Ballpoint pen clamps, Cutting Tooling blades and other components 4.Medical machinery parts: Dental braces, Scissors, Tweezers 5.Military Parts: Missile Tail, Gun parts, Warheads, Shaped Charge covers and Fuse parts 6.Electrical Components :Micro Motors, Electronic components ,Sensor Components 7.Mechanical parts: Cotton Loosoning machines, Textile Machines, Edge rolling machines, Office machinery  8.Automotive and marine parts: Clutch inner ring, Fork Sleeve, Distributor Sleeve , Value Guide, Synchronous hub, Safety Airbag.      

Power casting Molding is a procssing method for preparing metal parts, which uses metal power as raw material to manufacture parts with the required shape and performance through the molding and solidification process. Power casting is widely used in fields such as automobiles ,aerospace, electronic equipment, engineering machinery; Producing various metal parts such as gears, connecting rods, bearings, brake pads. Power Metallurgy(PM)  Normal Molding for the metal power, if need more information Learn More Metal Injecting Molding(MIM) New Molding for the metal powere,if need more information Learn More       Advantage of PM and MIN 1.Preparation of the vast majority of refractory metal,ceramic materials,nuclear materials and their compounds,pseudo alloys and porous materials can only be maded by power metallurgy methods. 2.Due to the powder metallurgy method being able to press into final size withou or with little need for subsequent mechanical processing, it can greatly save metal and reduce product cost. when using powder metallurgy method to manufacture products, the metal loss is only 1-5%,while when using general casting method to produce, the metal loss may reach 80%. 3.Due to powder metallurgy process don't melt materials during material production, it's not afraid of impurities brought by crucibles and deoxidizers. Sintering is generally carried out in a vacuum and reducsing atmosphere, and is not afraid of oxidation or any pollution to the material. Therefore, it is possible to produce high-purity materials. 4.Powder metallurgy method can ensure the correctness and uniformity of material composition ratio. 5.Powder metallurgy is suitable for producing a large number of products of the same shape, especially product with high processing costs such as gears, manufacturing using powder metallurgy can greatly reduce production costs. 6.Powder metallurgy method isn't only a method for producing material with certain special properties, but also a machining method with no or less chips . It has the advantanges of high productivity,high material utilization rate, saving machine tools and production area.However ,the cost of metal powders and molds in high, and the size and shape of the products are limited, resulting in poor toughness of the product. 7.The density of the product can be controlled, such as porous materials, high-density material, Fine grain size, uniform microstructure and no component segregation. Different Features of PM and MIM Features PM MIM Power Size(μm） >40 0.5-20 Cost Low High Moldlife Low High Density 80-85 95-99 Hardness(HRC) 45-48 53-55 Shape Simple Complex Weight(g) >200 <20          

Die Cast Zinc Alloy Mold is also commonly known as Dies. These molds are used for the mass-production of zinc alloy parts. Mold making used to be a difficult task before. Thanks to the CNC Machining technology mold making is now faster and more efficient than ever. Zinc-alloy Die casting Mould requires a material that has higher strength and melting temperature than Zinc. Otherwise, the die will be damaged during the casting process. Usually, steel molds are used for Zinc die casting. High-quality steel is quite costly and hard to machine. So, the die tooling cost is relatively high. Even though the high tooling cost,Zinc-alloy die casting toolings provides the best economy and quality for large volume production. Components of  Die Casting  Mold A Die Cast Mold consists of multiple parts with each serving a specific purpose. The main components in a die casting mold are listed below. >>Cover Die                                >>Ejector Die>>Ejector Pin>>Runner>>Sprue>>Cavity Insert>>Ejector Plate>>Support Plate etc.       Types of Die Cast Mold >Production Dies Production dies are used for large scale production. They are manufactured with high-quality, durable material to ensure longer die life. The initial tooling cost of production die is very high but the cost eventually drops with long term use.>Prototyping DiesThese dies are mainly used for creating prototypes. The tooling process and functionality is the same as that of production dies. But the complex features are simplified and machined with less precision to minimize tooling cost. >Trim Dies After a casting cycle ends, the parts have casting residue such as sprue, runners, risers, flash, etc. Trim dies are used for cutting down excess material from a completed die-casting. It is also used for separating the parts from a casting pattern.   Advantages of  Zinc-alloy Die Cast Mold   Zinc-alloy die cast mould has made the production of Zinc-alloy parts a lot easier. Some of the benefits of die casting molds are explained below:>A single mold can produce thousands of parts>Can produce parts with very tight tolerances>Can withstand high temperatures>Can withstand very high pressure>Significantly reduces production cost for large volume production>Can manufacture multiple aluminum parts at one go>Increased rate of cooling and solidification allows faster production>For these multiple advantages, aluminum die-cast mold is being used for boosting aluminum die casting capacity. Some Features of Zinc-alloy for Die casting Type Hardness Tensile Strength Yield Strength Impact Strength Shear Strength Elongation Rato   HB MPa MPa J MPa %in 50mm Zamak3 82 283 221 58 214 10 Zamak5 91 328 228 65 262 7 Zamak7 80 283 221 58 214 13 Zamak2 100 359 283 47 317 7 ZA-8 103 374 290 42 275 10      

How Does Three Plate Injection Mold Work Three Plate Injection Mold is a common injection mold ,it consists three parts: Fixed Half, Moved Half, Runner Plate.  Three Plate Molding Process is completed by two times of closing and opening  when injecting.  When opening, runner plate is first time, then moved half is second; When closing, Moved half is first time, runner Plate is second. The following is the main working principle: ⇒Mold Closed: At the begining of the injection cycle, the moved and fixed half will be retatively closed ,sealing the mold of cavity and core a closed space ⇒Plastic Injection: After mold is closed, the melted plastic is injected into the nozzle of the injection machine, and the melted plastic is injected into the mold cavity through high pressure ⇒Plastic Filling: Injection machine inject molten plastic into the mold, filling the ful space of mold cavity. Plastic cools and solidifies in the mold, gradually forming the shape of plastic products ⇒Cooling: After the completion of plastic filling, the cooling system starts to work, and the cooling and solidification process of the platic is accelerated by circulating the cooling medium ( normally water) ⇒Mold Opened: When plastic is fully cooled and solidified, the moved and fixed half will separate and open, part is enjected from the mold   Main Type of Gating For Two Plate Mold   Side Gating Direct Gating Sub Gating Banana Gating   What's  the  Advantage of Three Plate Mold   Simple Structure:Two plate injection mold is composed of two halves，with only one movable half between fixed and removed half. The structure is simple and clear,making it easy to maintain and operate   High Space Utilization: The fixed and moved half  of the two plate injection mold is vertical separation. Compared with the injection mold construction with  other structures, the two plate injection mold is more compact in size and more efficient in space utilization.   Wide Application : Two Plate injection mold is suitable for situations when injection molded parts are relatively simple and small mass production. Specific application areas include electronic products, plastic parts, daily necessities,etc   Easy Ejection: Due to the large opening and convenient opening-closing , the ejection speed of the two plate injection mold during the injection molding process will be faster, which is beneficial for improving production efficiency.    

How Does Two Plate Injection Mold Work Two Plate Injection Mold is a common injection mold ,it consists of a fixed half and a moved half.  Two Plate Molding Process is completed by closing and opening  when injecting. The following is the main working principle: ⇒Mold Closed: At the begining of the injection cycle, the moved and fixed half will be retatively closed ,sealing the mold of cavity and core a closed space ⇒Plastic Injection: After mold is closed, the melted plastic is injected into the nozzle of the injection machine, and the melted plastic is injected into the mold cavity through high pressure ⇒Plastic Filling: Injection machine inject molten plastic into the mold, filling the ful space of mold cavity. Plastic cools and solidifies in the mold, gradually forming the shape of plastic products ⇒Cooling: After the completion of plastic filling, the cooling system starts to work, and the cooling and solidification process of the platic is accelerated by circulating the cooling medium ( normally water) ⇒Mold Opened: When plastic is fully cooled and solidified, the moved and fixed half will separate and open, part is enjected from the mold   Main Type of Gating For Two Plate Mold   Side Gating Direct Gating Sub Gating Banana Gating   What's  the  Advantage of Two Plate Mold   Simple Structure:Two plate injection mold is composed of two halves，with only one movable half between fixed and removed half. The structure is simple and clear,making it easy to maintain and operate   High Space Utilization: The fixed and moved half  of the two plate injection mold is vertical separation. Compared with the injection mold construction with  other structures, the two plate injection mold is more compact in size and more efficient in space utilization.   Wide Application : Two Plate injection mold is suitable for situations when injection molded parts are relatively simple and small mass production. Specific application areas include electronic products, plastic parts, daily necessities,etc   Easy Ejection: Due to the large opening and convenient opening-closing , the ejection speed of the two plate injection mold during the injection molding process will be faster, which is beneficial for improving production efficiency.    

Die Cast Aluminum Mold is also commonly known as Dies. These molds are used for the mass-production of aluminum parts. Mold making used to be a difficult task before. Thanks to the CNC Machining technology mold making is now faster and more efficient than ever. Aluminum Die casting Mould requires a material that has higher strength and melting temperature than Aluminum. Otherwise, the die will be damaged during the casting process. Usually, steel molds are used for aluminum die casting. High-quality steel is quite costly and hard to machine. So, the die tooling cost is relatively high. Even though the high tooling cost, aluminum die casting toolings provides the best economy and quality for large volume production. Components of  Die Casting  Mold A Die Cast Mold consists of multiple parts with each serving a specific purpose. The main components in a die casting mold are listed below. >>Cover Die                                >>Ejector Die>>Ejector Pin>>Runner>>Sprue>>Cavity Insert>>Ejector Plate>>Support Plate etc.       Types of Die Cast Mold >Production Dies Production dies are used for large scale production. They are manufactured with high-quality, durable material to ensure longer die life. The initial tooling cost of production die is very high but the cost eventually drops with long term use.>Prototyping DiesThese dies are mainly used for creating prototypes. The tooling process and functionality is the same as that of production dies. But the complex features are simplified and machined with less precision to minimize tooling cost. >Trim Dies After a casting cycle ends, the parts have casting residue such as sprue, runners, risers, flash, etc. Trim dies are used for cutting down excess material from a completed die-casting. It is also used for separating the parts from a casting pattern.   Advantages of  Aluminum Die Cast Mold   Aluminum die cast mould has made the production of aluminum parts a lot easier. Some of the benefits of die casting molds are explained below:>A single mold can produce thousands of parts>Can produce parts with very tight tolerances>Can withstand high temperatures>Can withstand very high pressure>Significantly reduces production cost for large volume production>Can manufacture multiple aluminum parts at one go>Increased rate of cooling and solidification allows faster production>For these multiple advantages, aluminum die-cast mold is being used for boosting aluminum die casting capacity.      

Stamping mold is the process to exert pressure on the blank so that the blank will undergo steel transformation or separation to produce workpieces with fixed sizes, shapes and properties, stamping process can be divided into separating and forming. Main two types of Stamping Mold: >>Single Engineering Die  >>Progressive Die ，Compound Die， Follow Die       Single Engineering Die The Die is good for a simple part and the quantity is not large.Normally, it includes the  below types: Blanking Cutting Piercing Lancing Trimming Bending Progressive Die  Progressive die stamping is a stamping method that utilizes a series of stations installed across a die set. Each station is designed and configured to perform a specific stamping operation on the workpiece and, once it is completed, automatically move it along to the next station. As the workpiece makes its way through the various stations, it progressively takes on the desired shape and size. Main die press components and safety requirements 1. Working components The convex and concave mold is the working part that directly makes the blank shape, therefore, it is the key part of the mold. The convex and concave mold is not only precise but also complex, it should meet the following requirements: (1) It should have sufficient strength and cannot be broken or damaged during the stamping process; (2) Appropriate requirements should be placed on its materials and heat treatment to prevent brittleness due to high hardness.                                                                   2. Positioning components Positioning components are parts that determine the installation position of the blank. There are positioning dowel pins, stop pins, guide pins, guide bushings, fixed distance side knives, side presses, etc. When designing positioning parts, you should consider the convenience of operation, there should be no positioning, and the position should be easy to observe. It is best to use forward positioning, outer profile positioning, and guiding pin positioning. 3. Pressing, unloading, and discharging components The blanking parts include a blanking ring, blanking board, etc. The blank holder can exert pressure on the drawn blank, thereby preventing the blank from arching and forming wrinkles under the action of tangential pressure. The function of the holding plate is to prevent the blank from moving and bouncing. The function of the ejector and unloading plate is to facilitate the ejection of parts and the cleaning of waste. They are supported by springs, rubbers, and air cushion pushrods on the equipment, and can move up and down. The ejector pins should have sufficient ejection force and the movement should be limited. The unloading board should minimize the closed area or mill an empty slot in the operating position. The exposed unloading plate shall be surrounded by protective plates to prevent people from reaching out with fingers or foreign objects from entering, and the edges and corners of the exposed surface shall be blunt. 4. Guide components Guide bushings and guide pins are the most widely used guide components. Its function is to ensure that the convex and concave dies have a precise fit clearance during the stamping work. Therefore, the gap between the guide bushing and the guide pin should be smaller than the blanking gap. The guide bushing is set on the lower mold base, and the upper-end surface of the guide pin is at least 5 to 10 mm above the top surface of the upper template at the bottom dead center of the stroke. The guide bushing should be arranged far away from the module and the pressing plate so that the operator’s arm does not need to cross the guide bushing to feed and take materials. 5. Support pillar and mold clamp It includes upper and lower templates, mold handles, fixed plates for convex and concave molds, backing plates, stoppers, mold clamp, etc. The upper and lower templates are the basic components of the die; various other components are installed and fixed on it. The plane size of the template, especially the front and rear direction, should be compatible with the workpiece, too large or too small is not conducive to operation. Some molds (blanking, punching molds) need to set up a backing plate under the mold base for the convenience of parting. At this time, it is better to connect the backing plate and the template with screws, and the thickness of the two backing plates should be absolutely equal. The spacing of the backing plates shall be subject to the parts that can be delivered and should not be too large to prevent the template from breaking. 6. Fasteners It includes screws, nuts, springs, pins, washers, etc. Standard parts are generally used. There are a lot of standard components of stamping dies, and the des...